Lafayette: Not the usual classroom instruction

Lafayette police Sgt. Dan Nugent, right photo, gives instructions to Contra Costa County firefighters during an active-shooter training exercise at Acalanes High School in Lafayette on Nov. 27. The firefighters joined about 35 police officers from Lafayette, Orinda, Moraga, Walnut Creek and the Contra Costa County Sheriff's Office in the training, which covered various scenarios police officers and firefighters could encounter. Above, Contra Costa County firefighters walk down a hallway in diamond formation as they experience what police officers go through. This was the first time the fire department got involved in the training.

RAY CHAVEZ/Staff

Contra Costa County firefighters walk down a hallway in diamond formation as they experience what police officers go through as part of an active-shooter training exercise at Acalanes High School in Lafayette on Nov. 27. The firefighters joined about 35 police officers from Lafayette, Orinda, Moraga, Walnut Creek and the Contra Costa County Sheriff's Office in the training, which covered various scenarios police officers and firefighters could encounter. This was the first time the fire department got involved in the training.